You can make pin cushions that look like darn near anything.
From giant buttons to tea pots to loaves of bread or a favorite car you owned as a teenager, or even one that looks like someone you disliked in high school and want to stick pins in...NO-- that is a joke. Kinda. Or a basketball if you played it, or a sewing machine, or even a pile of fabric that looks like your stash sewed together. Use your imagination, and above all, have fun. Have joy in doing this and make things that make you smile.
Right now I'm making one that looks like a cheeseburger and will glue it on a small, yard sale saucer. I love making mini cheeseburger cookies, and this amuses me. Doesn't take much to amuse a childish mind, and I'm having much more fun in my second childhood than the first one that was so long ago I can't remember much about it, or don't want to.